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apply memory ordering in detaching/attaching a context

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This commit is contained in:
oliver Kowalke
2016-05-23 11:19:24 +02:00
parent 18a69a77a6
commit d37e26cd14
1 changed files with 5 additions and 3 deletions
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8
src/scheduler.cpp
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@@ -386,9 +386,11 @@ scheduler::attach_worker_context( context * ctx) noexcept {
BOOST_ASSERT( ! ctx->terminated_is_linked() );
BOOST_ASSERT( ! ctx->wait_is_linked() );
BOOST_ASSERT( ! ctx->worker_is_linked() );
BOOST_ASSERT( nullptr == ctx->scheduler_.load() );
scheduler * new_scheduler = ctx->scheduler_.load( std::memory_order_acquire);
BOOST_ASSERT( nullptr == new_scheduler);
new_scheduler = this;
ctx->scheduler_.store( new_scheduler, std::memory_order_release);
ctx->worker_link( worker_queue_);
ctx->scheduler_ = this;
}
void
@@ -401,7 +403,7 @@ scheduler::detach_worker_context( context * ctx) noexcept {
BOOST_ASSERT( ! ctx->wait_is_linked() );
BOOST_ASSERT( ! ctx->is_context( type::pinned_context) );
ctx->worker_unlink();
ctx->scheduler_ = nullptr;
ctx->scheduler_.store( nullptr, std::memory_order_release);
}
}}